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These holes are probably caused by the hollyhock weevil - I'm not quite sure where you are, but they are endemic in Colorado and other areas of the States. Remove the seed pods as they form - some may overwinter in those and emerge next year to cause damage. Treatment, if you don't want to use an appropriate pesticide spray, is to shake the plant - this ...


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Have you checked for caterpillars? Something is eating the leaves and it has a certain size, judging by the eating pattern. Could also be slugs, but then you would have noticed slime traces which I didn't see on the pictures. A healty plant can compensate for some loss, but if this continues, they might be bare in a few days or weeks, and that would nix ...



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